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#5909·Gil KalaiHistorical profile, December 9, 2024·AI-assistedMy general conclusion applies to these claims too: Google Quantum AI’s claims, published ones included, should be approached with caution, particularly extraordinary ones. Its 2019 claim of quantum supremacy overestimated the classical running time by ten orders of magnitude, and its fidelities matched its predictions too well to be plausible. Such claims may stem from significant methodological errors, and reflect the researchers’ expectations more than objective scientific reality.
Most of Kalai’s post re-analyzes Google’s 2019 experiment, which was long ago superseded anyway. Since then, several other experiments, some by other groups, such as USTC’s and Quantinuum’s, challenge his position, so it no longer rests on Google’s claims alone.